Gregory Chin, O.D.
NPI 1699763227 · Optometrist · Seattle, WA
Enrolled with Medicare as Practitioner - Optometry · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gregory Chin, O.D. is a Optometrist provider in Seattle, WA (NPI 1699763227).
Provider details
- NPI number
- 1699763227
- Entity type
- Individual
- Primary specialty
- OptometristEye and Vision Services Providers
- Credential
- O.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 3283TX (WA)
Specialties & taxonomies
Eye and Vision Services Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,206 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 288 | $103 |
| Exam of the Internal Drainage System of Eye92020 | 187 | $31 |
| Exam of Visual Field With Extended Testing92083 | 187 | $74 |
| Imaging of Retina92134 | 152 | $45 |
| Imaging of Optic Nerve92133 | 136 | $39 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 136 | $145 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 19 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cyclosporinebrand: Restasis | 510 | 117 |
| Latanoprost | 284 | 46 |
| Lifitegrastbrand: Xiidra | 165 | 50 |
| Bepotastine Besilate | 110 | 34 |
| Azelastine Hcl | 95 | 21 |
| Brimonidine Tartrate | 91 | 22 |
| Bimatoprostbrand: Lumigan | 61 | 13 |
| Cyclosporine |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,158 across 33 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-10-07
- Last updated
- 2014-10-10
Frequently asked questions
- What is Gregory Chin's NPI number?
- Gregory Chin's National Provider Identifier (NPI) is 1699763227, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gregory Chin's specialty?
- Gregory Chin is listed in the NPPES registry with a primary specialty of Optometrist (Eye and Vision Services Providers).
- Where is Gregory Chin located?
- Gregory Chin's practice location on file with NPPES is 677 S Jackson St, Seattle, WA 98104-2928.
- What is Gregory Chin's phone number?
- The practice phone number listed in the NPPES registry for Gregory Chin is (206) 623-1100.
- Does Gregory Chin accept Medicare?
- Gregory Chin is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gregory Chin's NPI active?
- Yes — Gregory Chin's NPI (1699763227) is active in the NPPES registry as of the last update on 2014-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.